Efficient mass-fabrication of amorphous MnSiO3/C with high stability through simple water-boiling treatment and the Li-ion storage performance
Amorphous manganese silicate was fabricated by simply heating the mixture of Na2SiO3•9H2O and MnCl2•4H2O in boiling water (named as water-boiling treatment). Even coated carbon at 700 °C employing glucose as the carbon source, the silicate is still in amorphous state. The electrochemical performance of the carbon-coated amorphous silicate as anode material for Li-ion batteries was evaluated. The carbon-coated product with a water-boiling time of 4 h exhibits excellent rate performance and high-rate cyclability. The amorphous silicate with porous structure and large specific surface area is beneficial to Li-ion transportation, and the homogeneous carbon coating around the silicate nanoparticles as conductive material is conducive to improving electronic conductivity.